Caterpillarwork toolgrapple-dem/sort

Caterpillar VRG-40/2

Maintenance schedule, common problems & OEM parts breakdown

The Caterpillar VRG-40/2 is a passive hydraulic Demolition & Sorting Grapple work tool, not a self-powered machine. Built on Verachtert lineage now sold under Cat's work-tool catalog, it carries no engine, ECM, undercarriage, or transmission of its own — it mounts to a host excavator in roughly the 20 to 40 t class through a hinge-plate coupler and runs entirely off the carrier's hydraulics, drawing one circuit for jaw open/close and a separate circuit for continuous 360° rotation. Operating weight runs roughly 1,680 to 2,120 kg (3,700 to 4,670 lb) with a jaw capacity near 850 to 900 L, closing force near 60 to 66 kN, and a working pressure around 320 to 350 bar, figures that vary somewhat by shell and bracket configuration. It is offered in D (demolition, barred skeleton shell) and R (recycling, closed shell) configurations, and sits as the largest member of the VRG/2 grapple family alongside the VRG-20/2, VRG-25/2, and VRG-30/2, which followed an earlier, non-rotating bare VRG-40 in the Verachtert line.

Across the VRG/2 family, the '/2' generation added continuous hydraulic rotation and updated shell/cylinder design over the earlier bare VRG line, and each size in the family scales the same jaw-and-rotation circuit layout to a different carrier class rather than sharing one fixed spec sheet. In Caterpillar's current work-tool lineup, the VRG-40/2's closest catalog parallel is the G332 Demolition & Sorting Grapple, which targets the same 30 to 40 t carrier class and the same grapple/rotation circuit concept, making it the natural reference point for anyone comparing an older VRG-40/2 to what Cat sells today. In the used and parts market, this size class stays in steady demand from demolition and scrap-sorting contractors because the coupler-mounted design lets it move between excavator brands rather than being tied to one carrier, and because wear concentrates in a short list of serviceable points — pins, bushings, cylinder seals, and the rotation bearing — that keep good used units economical to recondition rather than scrap.

Below: full specifications, fluids & capacities, the factory service schedule, common service parts, verified fault codes, what owners discuss, attachment guidance, the complete assembly directory, and a serial-number reference. Complete parts lists with full OEM part numbers, exploded diagrams, quantities, and fitment data are available free in Heavy Parts AI.

Caterpillar VRG-40/2 specifications

Engine

Power source	No onboard engine. Passive hydraulic work tool, powered entirely by the carrier excavator's hydraulic system through the mounting bracket/swivel.
Emissions tier	Not applicable — no engine on the tool itself.

Weights

Operating (tool) weight	approx. 1,680 kg (3,704 lb) to 2,250 kg (4,960 lb) — varies by configuration/source (mounting bracket, shell/knife options, and D-series revision affect listed weight)
Shipping weight	Same as operating weight — single-piece attachment, no separable components for transport
Ground pressure	Not applicable — attachment has no ground contact; bears no independent ground load

Dimensions

Overall height (shells closed)	approx. 1,875 mm (73.8 in)
Overall width (shells closed)	approx. 1,370 to 1,400 mm (53.9 to 55.1 in) — minor variance between listings
Maximum opening width / spread (shells open)	approx. 2,030 to 2,100 mm (79.9 to 82.7 in)
Wheelbase / track gauge	Not applicable — work tool, no undercarriage
Ground clearance	Not applicable — mounted on carrier, no independent ground clearance

Performance

Grab/shell capacity	approx. 0.9 m³ (31.8 ft³ / 900 l)
Closing force (on cutting edges)	approx. 60 kN (13,490 lbf)
Rotation	Swivel-head mounting allows continuous (360°) clockwise/counterclockwise rotation, driven by carrier hydraulics
Required hydraulic working pressure	approx. 320 bar (4,640 psi)
Required hydraulic flow	approx. 200 l/min (52.8 US gpm)
Recommended carrier class	approx. 20 to 35 metric ton (22 to 38.6 US ton) excavator class
Travel speed / drawbar / gradeability	Not applicable — passive attachment, no self-propulsion

Service capacities (summary)

Fuel tank	Not applicable — no engine on the tool
Hydraulic system (tool)	No dedicated onboard reservoir; tool draws hydraulic pressure/flow directly from the host excavator's circuit (see Performance for pressure/flow requirements)
Engine oil	Not applicable — no engine on the tool
Cooling system	Not applicable — no engine on the tool

Values vary by configuration, region, and serial range — confirm against your machine before planning transport or lifts.

Caterpillar VRG-40/2 maintenance schedule

Service interval	Tasks
Every 10 h	Grease jaw pivot pins and bushings at every shift start on demolition/sorting duty Grease the rotation swivel/bearing race Cycle jaws and rotation through full range and check for hesitation, binding, or uneven shell closing Inspect cylinder rod for pitting, scoring, or seepage at the gland Check hose routing across the rotation joint for chafing against the frame Check coupler/hinge-plate pin bores for play with the tool unloaded
Every 250 h	Torque-check mounting bracket and coupler retaining bolts Inspect rotation-circuit hoses and fittings for wear, chafing, or weeping Check cylinder mounting pins and retainers for wear or looseness Inspect jaw wear plates and cutting edges; build up light wear with hardfacing before it reaches base metal Sample host carrier hydraulic oil per the carrier's own OMM schedule, since the tool shares that circuit
Every 500 h	Detailed inspection of the rotation bearing/swivel for play, drift, or uneven rotation speed Verify jaw synchronization — both shells should close evenly under load Check load-holding valve function on the jaw circuit Replace grease fittings damaged or packed with grit Inspect frame and hinge-plate welds for cracking
Every 1,000 h	Measure pin and bushing wear at all pivot points; replace anything out of tolerance Inspect cylinder rod condition and reseal if seepage or pitting is present Check rotation motor/gear or bearing preload Inspect coupler hinge-plate bore wear and pin fit Touch up coatings on exposed structural steel to slow corrosion
Every 2,000 h	Evaluate rotation bearing/gear for rebuild or replacement Reseal or replace the cylinder if the rod shows repeat leakage or scoring Inspect jaw shell structure for cracking; replace shells worn beyond hardfacing limits Replace pins and bushings across all pivot points as a set rather than one at a time
Every 4,000 h	Complete teardown inspection of the rotation/swivel assembly Run structural crack inspection on the frame and hinge plate Replace jaw shells and cutting edges if hardfacing has reached its rebuild limit Replace the jaw cylinder if repeated reseals no longer hold pressure Repaint the full structure and refresh all grease points before returning to service

Servicing the VRG-40/2 beyond the schedule

Predictive Maintenance & Fluid Analysis

The VRG-40/2 has no onboard fluid system, so "fluid analysis" means sampling the host carrier's hydraulic oil on the carrier's own schedule, since that same oil powers the jaw-clamp and rotation circuits. Rising particulate or metal content often shows up before a visible leak and can flag early rod-seal or swivel-bearing wear. Because the tool carries no gauges of its own, track rotation smoothness and jaw synchronization by feel and sight as the practical early-warning signs on this attachment.

Corrective & Common Repairs

Cylinder rod seepage is the most common hydraulic complaint on this class of grapple, and it usually traces to a pitted or scored rod rather than the seal alone, so inspect the rod before installing a reseal kit. Pin and bushing play at the jaw pivots and the coupler hinge-plate shows up as knocking under load and is a straightforward field replacement. Rotation hesitation or drift is most often a balance-valve or swivel-joint issue, not the rotation bearing itself.

Overhaul & Rebuild Points

Major rebuild work on the VRG-40/2 centers on the rotation bearing/gear assembly, the jaw shell structure, and the pivot pin bores — the load-bearing points that see the most cyclic stress in demolition duty. Worn jaw tips are typically rebuilt with hardfacing well before the shell itself needs replacing. At a full overhaul, replace pins and bushings across the tool as a set, inspect the frame and hinge plate for cracking, and evaluate the cylinder for a rod or full replacement rather than another reseal.

Seasonal & Environment Servicing

Dusty, wet demolition and recycling sites pack grit into the jaw pivots and rotation swivel faster than normal duty, so shorten the grease interval and replace fittings that get damaged from repeated purging. Since the tool has no fluid of its own, cold-weather performance depends on the host carrier's hydraulic oil viscosity — sluggish rotation or slow jaw response in cold starts is a carrier warm-up issue, not a tool fault. Keep hoses and exposed rod surfaces shielded from rubble impact in demolition environments.

VRG-40/2 attachments & work tools

Coupler / mounting system

VRG-40/2 mounts via a fixed hinge-plate bolted to a heavy-duty quick coupler rather than pin-on bucket ears, matching the family-wide Verachtert design. On Cat-badged carriers this pairs with a CW-class quick coupler sized for the 30-40 t bracket; on non-Cat carriers Verachtert's own SKP/Connect'o'maat hitch plate is used instead. Confirm exact coupler class with the dealer since bracket width varies by carrier stick geometry.

Jaw open/close hydraulic circuit

Runs off the host excavator's main auxiliary circuit through a cross-mounted double-acting cylinder, with a factory load-holding valve fitted for safe suspended-load work. Working pressure sits around 320-350 bar depending on carrier valve setup; flow requirement scales with the 30-40 t carrier class.

Continuous rotation hydraulic kit

360-degree rotation needs a dedicated secondary (rotation) hydraulic line from the carrier, separate from the open/close circuit, feeding a hydraulic swivel/rotator group built into the grapple head. Carriers without a factory rotation/auxiliary circuit need a hose-routing and valve kit added before this tool can be run.

Shell / jaw configuration

Offered in demolition (barred, skeleton-style shell) and recycling (closed-shell, sorting) configurations, sold under the D and R suffixes in the Verachtert lineup. The skeleton/barred shell is the standard factory configuration for general demolition and sorting duty on this size class.

Carrier excavator class

Sized for excavators in roughly the 20-35 t to 30-40 t range depending on source and shell configuration; the current Cat catalog equivalent lists a 30-40 t excavator class. Verify against the carrier's stick/boom hydraulic capacity and counterweight before ordering.

Weight and capacity for the class

Operating weight runs roughly 1,680-2,070 kg (3,700-4,570 lb) and grapple capacity roughly 850-900 L (about 1.1 yd3) depending on shell type and source; treat as a class range rather than a fixed figure. Closing force is commonly listed near 66 kN for this size.

Guarding and wear options

Jaw edges use replaceable wear/cutting elements rather than a fixed blade, reducing downtime from edge wear in demolition duty. Standard factory fitment includes cylinder guarding consistent with the rest of the Verachtert VRG/2 lineup; heavier bolt-on shell guarding is a common field/dealer option rather than a documented factory line item for this specific model.

All VRG-40/2 assemblies by section

Every catalogued assembly group for the Caterpillar VRG-40/2. Open an assembly to preview the parts inside — full OEM part numbers are available in Heavy Parts AI.

Frame And Body

223-4659 Housing & Shell Gp-Grapple

09***54	Seal; (Id=79.85mm)	8
14***78	Lockwasher	7
16***58	Bushing; (50mm)	2
22***59	Housing & Shell Group-Grapple	1

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220-8500 Housing & Shell Gp-Grapple

09***33	Seal Stk Link, Bkt Link & Cyl	4
15***21	Lockwasher	7
22***00	Housing & Shell Group-Grapple	1
22***04	Cylinder & Lines Group-Grapple	1

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225-3602 Housing & Shell Gp-Grapple

09***54	Seal; (Id=79.85mm)	8
14***78	Lockwasher	7
16***58	Bushing; (50mm)	2
22***64	Pin	4

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195-0224 Housing & Shell Gp-Grapple

09***34	Shim; (T=69.85mm)	4
15***21	Lockwasher	7
19***24	Housing & Shell Group-Grapple	1
22***07	Cylinder & Lines Group-Grapple	1

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220-8521 Housing & Shell Gp-Grapple

09***34	Shim; (T=69.85mm)	4
15***21	Lockwasher	7
22***07	Cylinder & Lines Group-Grapple	1
22***21	Housing & Shell Group-Grapple	1

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220-8511 Housing & Shell Gp-Grapple

09***33	Seal Stk Link, Bkt Link & Cyl	4
15***21	Lockwasher	7
22***04	Cylinder & Lines Group-Grapple	1
22***11	Housing & Shell Group-Grapple	1

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282-9859 Housing Gp-Grapple

09***33	Seal Stk Link, Bkt Link & Cyl	8
22***38	Bearing-Sleeve	4
28***49	Housing As	1
28***59	Housing Group-Grapple	1

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282-9860 Housing Gp-Grapple

09***34	Shim; (T=69.85mm)	8
22***39	Bearing-Sleeve	4
28***50	Housing As	1
28***60	Housing Group-Grapple	1

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225-8701 Housing Gp-Grapple

09***33	Seal Stk Link, Bkt Link & Cyl	8
22***01	Housing As	1
22***38	Bearing-Sleeve	4
22***01	Housing Group-Grapple	1

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225-8704 Housing Gp-Grapple

09***34	Shim; (T=69.85mm)	8
19***22	Housing As	1
22***39	Bearing-Sleeve	4
22***04	Housing Group-Grapple	1

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Hydraulic System

255-2310 Chart-Connecting Lines

25***10

Chart-Connecting Lines

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255-2312 Chart-Connecting Lines

25***12

Chart-Connecting Lines

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255-2308 Chart-Connecting Lines

25***08

Chart-Connecting Lines

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285-8291 Cylinder & Lines Gp-Grapple

09***73	Bolt; (Socket Head) (M12x1.75x60mm)	8
14***92	Elbow; (-12 Orfs/-12 Orfs Swivel)	4
15***19	Lockwasher	8
16***43	Seal	1

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288-1392 Cylinder & Lines Gp-Grapple

15***94	Adapter As	4
15***44	Seal	1
22***78	Hose As	2
28***92	Cylinder & Lines Group-Grapple	1

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288-1391 Cylinder & Lines Gp-Grapple

14***70	Elbow, 90°,-8 Orb Swiv. /-8 Orfs	4
15***94	Adapter As	4
15***44	Seal	1
22***89	Cylinder Group-Hydraulic	1

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220-8504 Cylinder & Lines Gp-Grapple

14***70	Elbow, 90°,-8 Orb Swiv. /-8 Orfs	4
15***94	Adapter As	4
15***44	Seal	1
15***18	Lockwasher	5

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220-8507 Cylinder & Lines Gp-Grapple

15***94	Adapter As	4
15***44	Seal	1
15***18	Lockwasher	5
19***34	Seal	2

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339-0006 Cylinder Gp-Grapple

09***54	Seal; (Id=79.85mm)	4
09***88	Setscrew	1
16***84	Kit-Seal	1
22***40	Bearing-Sleeve	2

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224-0187 Cylinder Gp-Hydraulic

09***54	Seal; (Id=79.85mm)	2
12***68	Rod-Threaded	1
22***87	Cylinder Group-Hydraulic	1
22***76	Kit-Seal; (Hydraulic Cylinder)	1

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229-8529 Cylinder Gp-Hydraulic

09***33	Seal Stk Link, Bkt Link & Cyl	2
14***88	Fitting	1
17***44	Seal-O-Ring	1
22***38	Bearing-Sleeve	1

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224-0189 Cylinder Gp-Hydraulic

09***33	Seal Stk Link, Bkt Link & Cyl	2
22***89	Cylinder Group-Hydraulic	1
22***31	Kit-Seal	1
22***38	Bearing-Sleeve	1

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229-9258 Cylinder Gp-Hydraulic

09***34	Shim; (T=69.85mm)	2
14***88	Fitting	1
22***39	Bearing-Sleeve	1
22***58	Cylinder Group-Hydraulic	1

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229-9828 Cylinder Gp-Hydraulic

09***54	Seal; (Id=79.85mm)	2
22***40	Bearing-Sleeve	1
22***28	Cylinder Group-Hydraulic	1
22***34	Cylinder Group-Hydraulic	1

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303-6529 Cylinder Gp-Hydraulic -Grapple

09***54	Seal; (Id=79.85mm)	4
09***88	Setscrew	1
22***76	Kit-Seal; (Hydraulic Cylinder)	1
22***40	Bearing-Sleeve	2

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224-0188 Cylinder Gp-Hydraulic

09***34	Shim; (T=69.85mm)	2
22***88	Cylinder Group-Hydraulic	1
22***75	Kit-Seal	1
22***39	Bearing-Sleeve	1

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303-6525 Cylinder Gp-Hydraulic

09***34	Shim; (T=69.85mm)	4
22***75	Kit-Seal	1
22***39	Bearing-Sleeve	2
22***61	Head	1

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244-3147 Fitting Gp-Hydraulic

11***49	Fitting; (Quick Disconnect, Male)	2
11***54	Cap	2
24***47	Fitting Group-Hydraulic	1

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244-3146 Fitting Gp-Hydraulic

23***81	Cap-Dust	2
23***82	Kit-Repair; (Quick Disconnect)	1
24***62	Fitting Group-Hydraulic; (Quick Disconnect, Female)	2
24***46	Fitting Group-Hydraulic	1

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235-5051 Lines Gp-Connecting

14***40	Adapter; (Straight) (-8 Orb X -8 Orfs)	2
23***08	Hose As	2
23***51	Lines Group-Connecting	1
3K***60	Seal Pilot Manifold On; Seal To Boom Check Valve Drain	1

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234-5666 Lines Gp-Connecting

1P***02	Seal-Rectangular 28.83mm(1.136in) Id	2
23***66	Lines Group-Connecting	1
23***41	Hose As	2
8T***23	Bolt-Socket Head; (M10x1.5x45-mm)	8

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235-5052 Lines Gp-Connecting

12***40	Fitting As-Hydraulic; (Quick Disconnect, Male)	2
23***08	Hose As	2
23***52	Lines Group-Connecting	1

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244-3140 Lines Gp-Connecting

23***69	Lines Group-Connecting	1
24***21	Lines Group-Connecting	1
24***40	Lines Group-Connecting	1

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244-3143 Lines Gp-Connecting

23***74	Lines Group-Connecting	1
23***51	Lines Group-Connecting	1
24***43	Lines Group-Connecting	1

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234-5674 Lines Gp-Connecting

09***70	Bolt-Socket Hd; (M12 X 1.75 X 45)	8
10***90	Adapter As	2
12***96	Flange-Half	4
23***74	Lines Group-Connecting	1

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234-5698 Lines Gp-Connecting

12***40	Fitting As-Hydraulic; (Quick Disconnect, Male)	2
23***98	Lines Group-Connecting	1
23***08	Hose As	2

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233-7824 Lines Gp-Connecting

23***24	Lines Group-Connecting	1
23***66	Lines Group-Connecting	1
23***90	Lines Group-Connecting	1

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244-3141 Lines Gp-Connecting

23***68	Lines Group-Connecting	1
24***21	Lines Group-Connecting	1
24***41	Lines Group-Connecting	1

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233-7828 Lines Gp-Connecting

23***28	Lines Group-Connecting	1
23***74	Lines Group-Connecting	1
23***98	Lines Group-Connecting	1

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234-5690 Lines Gp-Connecting

11***49	Fitting; (Quick Disconnect, Male)	2
23***90	Lines Group-Connecting	1
23***08	Hose As	2
6V***98	Seal-O-Ring -Line From Gear Pump Output	2

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244-3022 Lines Gp-Connecting

23***08	Hose As	2
24***22	Lines Group-Connecting	1
6V***98	Seal-O-Ring -Line From Gear Pump Output	2
6V***55	Nut-Face Seal; (1-14-Thd)	2

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239-9250 Lines Gp-Connecting

23***50	Lines Group-Connecting	1
23***51	Lines Group-Connecting	1
23***52	Lines Group-Connecting	1

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244-3021 Lines Gp-Connecting

23***08	Hose As	2
24***21	Lines Group-Connecting	1

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233-7825 Lines Gp-Connecting

23***25	Lines Group-Connecting	1
23***65	Lines Group-Connecting; -Open, Close	1
23***89	Lines Group-Connecting	1

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233-7827 Lines Gp-Connecting

23***27	Lines Group-Connecting	1
23***68	Lines Group-Connecting	1
23***95	Lines Group-Connecting	1

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239-9251 Lines Gp-Connecting

1P***04	Seal - Rectangular (45mm Dia)	2
1P***67	Flange-Half (43.31 mm Id)	4
23***81	Hose As	2
23***51	Lines Group-Connecting	1

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234-5669 Lines Gp-Connecting

1P***04	Seal - Rectangular (45mm Dia)	2
1P***67	Flange-Half (43.31 mm Id)	4
23***69	Lines Group-Connecting	1
24***71	Hose As	2

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235-5048 Lines Gp-Connecting

1P***04	Seal - Rectangular (45mm Dia)	2
1P***67	Flange-Half (43.31 mm Id)	4
23***48	Lines Group-Connecting	1
24***23	Hose As	2

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233-7831 Lines Gp-Connecting

23***31	Lines Group-Connecting	1
23***69	Lines Group-Connecting	1
23***90	Lines Group-Connecting	1

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233-7833 Lines Gp-Connecting

23***33	Lines Group-Connecting	1
23***48	Lines Group-Connecting	1
23***52	Lines Group-Connecting	1

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233-7834 Lines Gp-Connecting

23***34	Lines Group-Connecting	1
23***48	Lines Group-Connecting	1
23***51	Lines Group-Connecting	1

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239-9252 Lines Gp-Connecting

23***52	Lines Group-Connecting	1
25***45	Hose As	2
3K***60	Seal Pilot Manifold On; Seal To Boom Check Valve Drain	2
6V***98	Seal-O-Ring -Line From Gear Pump Output	2

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233-7826 Lines Gp-Connecting

23***26	Lines Group-Connecting	1
23***68	Lines Group-Connecting	1
23***90	Lines Group-Connecting	1

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244-3142 Lines Gp-Connecting

23***68	Lines Group-Connecting	1
24***22	Lines Group-Connecting	1
24***42	Lines Group-Connecting	1

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244-3144 Lines Gp-Connecting

23***48	Lines Group-Connecting	1
23***51	Lines Group-Connecting	1
24***44	Lines Group-Connecting	1

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234-5665 Lines Gp-Connecting -Open, Close

09***70	Bolt-Socket Hd; (M12 X 1.75 X 45)	8
16***43	Seal	1
17***05	Adapter As	2
23***65	Lines Group-Connecting; -Open, Close	1

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234-5668 Lines Gp-Connecting

09***70	Bolt-Socket Hd; (M12 X 1.75 X 45)	8
10***90	Adapter As	2
12***96	Flange-Half	4
23***68	Lines Group-Connecting	1

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234-5689 Lines Gp-Connecting

11***49	Fitting; (Quick Disconnect, Male)	2
23***89	Lines Group-Connecting	1
23***89	Hose As	2

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234-5695 Lines Gp-Connecting

12***40	Fitting As-Hydraulic; (Quick Disconnect, Male)	2
23***95	Lines Group-Connecting	1
23***08	Hose As	2

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170-2174 Manifold Gp-Control

14***20	Bolt-Socket Head; (M6x1x75-mm)	4
17***74	Manifold Group-Control	1
7Y***19	Seal-O-Ring (Id=12.37mm)	2

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270-7532 Motor & Manifold Gp-Rotator

17***73	Motor Group-Gerotor	1
17***74	Manifold Group-Control	1
17***77	Gear-Drive; (15-Teeth)	1
27***32	Motor & Manifold Group-Rotator	1

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170-2173 Motor Gp-Gerotor

17***73	Motor Group-Gerotor	1
17***21	Kit-Housing	1
17***22	Shaft-Output	1
17***25	Key-Square	1

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295-6540 Rotator & Mtg Gp-Hydraulic

14***82	Fitting	2
14***53	Plug	2
14***86	Fitting As	2
15***36	Film-Warning; (Read Operation Manual)	1

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195-0223 Rotator & Mtg Gp-Hydraulic

14***78	Lockwasher	2
15***19	Lockwasher	8
15***21	Lockwasher	4
16***43	Seal	1

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272-2204 Rotator Gp-Hydraulic

13***55	Setscrew; (M4x0.7x8-mm)	2
14***78	Lockwasher	4
14***92	Elbow; (-12 Orfs/-12 Orfs Swivel)	4
15***19	Lockwasher	8

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270-4968 Rotator Gp-Hydraulic

13***80	Hose As; (Nom 06, L=450mm)	2
14***67	Elbow Group; (Each Includes)	2
15***94	Adapter As	2
15***95	Adapter As	4

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217-2805 Rotator Gp-Hydraulic

21***05	Rotator Group-Hydraulic	1
21***19	Bearing As	1
21***18	Bolt; (M18x2.5x120-mm)	10
6T***45	Dowel	2

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282-9857 Rotator Gp-Hydraulic

08***72	Seal-O-Ring	1
12***28	Adaptor - Includes:-	2
14***67	Elbow Group; (Each Includes)	2
14***89	Hose Assem.	2

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281-5458 Swivel Gp

14***53	Plug	2
14***81	Plug	2
17***44	Plate-Locking	1
27***65	Ring	1

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170-3045 Swivel Gp

16***43	Seal	1
17***45	Swivel Group	1
17***41	Stator	1
17***42	Rotor	1

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Service Equipment And Supplies

282-9844 Plate & Film Gp

15***19	Lockwasher	12
22***10	Cover As-Access	2
22***69	Film-Warning; (Do Not Operate, Read Omm)	2
24***18	Film-Warning; (Crush Hazard, Stay Back)	2

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282-9846 Plate & Film Gp

15***19	Lockwasher	12
22***10	Cover As-Access	2
22***69	Film-Warning; (Do Not Operate, Read Omm)	2
24***18	Film-Warning; (Crush Hazard, Stay Back)	2

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220-8517 Plate & Film Gp

15***44	Film-Warning; (Flying Debris)	2
15***19	Lockwasher	12
15***35	Film-Warning; (Crush Hazard, Stay Back)	2
15***36	Film-Warning; (Read Operation Manual)	1

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220-8515 Plate & Film Gp

15***44	Film-Warning; (Flying Debris)	2
15***19	Lockwasher	12
15***35	Film-Warning; (Crush Hazard, Stay Back)	2
15***36	Film-Warning; (Read Operation Manual)	1

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220-8525 Plate & Film Gp

15***44	Film-Warning; (Flying Debris)	2
15***19	Lockwasher	12
15***35	Film-Warning; (Crush Hazard, Stay Back)	2
15***36	Film-Warning; (Read Operation Manual)	1

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272-9954 Plate & Film Gp

15***19	Lockwasher	12
22***69	Film-Warning; (Do Not Operate, Read Omm)	2
24***18	Film-Warning; (Crush Hazard, Stay Back)	2
25***60	Film-Warning; (Flying Debris)	2

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220-8527 Plate & Film Gp

15***44	Film-Warning; (Flying Debris)	2
15***19	Lockwasher	12
15***35	Film-Warning; (Crush Hazard, Stay Back)	2
15***36	Film-Warning; (Read Operation Manual)	1

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341-9102 Plate & Film Gp

15***19	Lockwasher	12
22***51	Cover-Access	1
22***10	Cover As-Access	2
24***76	Film-Warning; (Do Not Operate, Read Omm)	2

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Work Tool Arrangement

282-9370 Grapple Ar

13***55	Setscrew; (M4x0.7x8-mm)	2
14***82	Fitting	2
14***86	Fitting As	2
15***44	Seal	1

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282-9374 Grapple Ar

13***55	Setscrew; (M4x0.7x8-mm)	1
14***82	Fitting	2
14***86	Fitting As	1
15***44	Seal	1

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282-9372 Grapple Ar

13***55	Setscrew; (M4x0.7x8-mm)	2
14***82	Fitting	2
14***86	Fitting As	2
15***44	Seal	1

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282-9376 Grapple Ar

220-8516 Grapple Ar-Demolition

14***82	Fitting	2
14***83	Fitting As	2
16***43	Seal	1
17***77	Fitting As; (Quick Disconnect, Male)	4

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220-8524 Grapple Ar-Demolition

14***82	Fitting	2
14***83	Fitting As	2
16***43	Seal	1
17***77	Fitting As; (Quick Disconnect, Male)	4

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341-6920 Grapple Ar-Demolition

13***55	Setscrew; (M4x0.7x8-mm)	2
14***08	Fitting	2
14***86	Fitting As	2
15***44	Seal	1

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224-0196 Grapple Ar-Demolition

14***08	Fitting	2
14***86	Fitting As	2
15***44	Seal	1
20***44	Box As-Storage; (Tool)	1

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220-8526 Grapple Ar-Sorting

14***82	Fitting	2
14***83	Fitting As	2
16***43	Seal	1
17***77	Fitting As; (Quick Disconnect, Male)	4

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220-8514 Grapple Ar-Sorting

14***82	Fitting	2
14***83	Fitting As	2
16***43	Seal	1
17***77	Fitting As; (Quick Disconnect, Male)	4

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224-0198 Grapple Ar-Sorting

14***08	Fitting	2
14***86	Fitting As	2
15***44	Seal	1
20***44	Box As-Storage; (Tool)	1

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Work Tools

230-6052 Bracket Gp-Mounting

15***19	Lockwasher	4
23***52	Bracket Group-Mounting	1
23***53	Bracket As	1
23***56	Cover	1

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220-9951 Bracket Gp-Mounting

15***21	Lockwasher	2
16***82	Bolt-Socket Head; (M24x3x70-mm)	10
22***51	Bracket Group-Mounting	1
22***52	Bracket As	1

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248-7982 Bracket Gp-Mounting

16***82	Bolt-Socket Head; (M24x3x70-mm)	10
24***82	Bracket Group-Mounting	1
24***83	Bracket As	1
5P***76	Washer Guard To Support Assembly And Guard Assembly	2

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233-7772 Bracket Gp-Mounting

15***19	Lockwasher	4
23***56	Cover	1
23***72	Bracket Group-Mounting	1
23***06	Bracket Group-Mounting	1

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299-0293 Bracket Gp-Mounting

13***55	Setscrew; (M4x0.7x8-mm)	2
16***82	Bolt-Socket Head; (M24x3x70-mm)	14
29***93	Bracket Group-Mounting	1
29***94	Bracket As	1

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325-5970 Bracket Gp-Mounting

13***55	Setscrew; (M4x0.7x8-mm)	2
16***82	Bolt-Socket Head; (M24x3x70-mm)	10
32***70	Bracket Group-Mounting	1
32***72	Bracket As	1

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169-4966 Bracket Gp-Mounting

12***76	Washer; (13x40x3-mm Thk)	2
16***66	Bracket Group-Mounting	1
16***83	Bracket As	1
16***82	Bolt-Socket Head; (M24x3x70-mm)	10

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298-7706 Bracket Gp-Mounting

12***76	Washer; (13x40x3-mm Thk)	2
13***55	Setscrew; (M4x0.7x8-mm)	2
16***82	Bolt-Socket Head; (M24x3x70-mm)	10
29***06	Bracket Group-Mounting	1

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223-4658 Grapple Gp

22***58	Grapple Group	1
22***59	Housing & Shell Group-Grapple	1
27***04	Rotator Group-Hydraulic	1

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282-9848 Grapple Gp

15***21	Lockwasher	7
22***67	Pin	4
22***68	Pin	2
22***86	Pin	1

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220-8506 Grapple Gp

17***73	Pin-Spring	2
19***23	Rotator & Mtg Group-Hydraulic	1
19***24	Housing & Shell Group-Grapple	1
22***06	Grapple Group	1

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224-0200 Grapple Gp

22***00	Grapple Group	1
22***02	Housing & Shell Group-Grapple	1
27***04	Rotator Group-Hydraulic	1

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282-9854 Grapple Gp

15***21	Lockwasher	7
22***83	Pin	1
22***84	Pin	4
22***85	Pin	2

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220-8510 Grapple Gp

17***73	Pin-Spring	2
19***23	Rotator & Mtg Group-Hydraulic	1
22***10	Grapple Group	1
22***11	Housing & Shell Group-Grapple	1

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282-9855 Grapple Gp

15***21	Lockwasher	7
22***83	Pin	1
22***84	Pin	4
22***85	Pin	2

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220-8499 Grapple Gp

17***73	Pin-Spring	2
19***23	Rotator & Mtg Group-Hydraulic	1
22***99	Grapple Group	1
22***00	Housing & Shell Group-Grapple	1

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341-6917 Grapple Gp

09***54	Seal; (Id=79.85mm)	16
14***78	Lockwasher	7
16***58	Bushing; (50mm)	4
22***64	Pin	4

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282-9847 Grapple Gp

15***21	Lockwasher	7
22***67	Pin	4
22***68	Pin	2
22***86	Pin	1

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220-8520 Grapple Gp

17***73	Pin-Spring	2
19***23	Rotator & Mtg Group-Hydraulic	1
22***20	Grapple Group	1
22***21	Housing & Shell Group-Grapple	1

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235-7935 Shell Gp-Grapple

22***70	Edge	1
22***98	Edge-Cutting	2
22***03	Shell As; (Lh)	1
22***04	Shell As; (Rh)	1

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235-7936 Shell Gp-Grapple

22***60	Shell As; (Lh)	1
22***61	Shell As; (Rh)	1
22***70	Edge	1
22***98	Edge-Cutting	2

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235-7933 Shell Gp-Grapple

22***22	Shell As; (Lh)	1
22***23	Shell As; (Rh)	1
22***67	Edge	1
22***05	Edge-Cutting	2

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235-7932 Shell Gp-Grapple

22***12	Shell As; (Lh)	1
22***13	Shell As; (Rh)	1
22***20	Edge	1
22***49	Edge-Cutting	2

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235-7934 Shell Gp-Grapple

19***19	Shell As; (Rh)	1
19***20	Shell As; (Lh)	1
22***67	Edge	1
22***05	Edge-Cutting	2

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339-0131 Shell Gp-Grapple

24***96	Edge	2
2J***06	Nut Front Support To Frame; Nut-Front Support To Frame	24
33***29	Shell As; (Lh)	1
33***30	Shell As; (Rh)	1

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235-7931 Shell Gp-Grapple

22***02	Shell As; (Lh)	1
22***03	Shell As; (Rh)	1
22***20	Edge	1
22***49	Edge-Cutting	2

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VRG-40/2 serial number reference

The PIN plate on the VRG-40/2 grapple is riveted or bolted to the frame near the mounting bracket/swivel housing, the same area used across the Verachtert-built VRG demolition and sorting grapple line. Read the 3-letter prefix followed by a sequential number; the prefix identifies the specific model/build series. Do not confuse it with a sibling size's prefix: VRG-20/2, VRG-25/2, VRG-30/2 and VRG-40/2 are documented together in one parts book but each carries its own distinct prefix. If the plate is missing or illegible, the mounting frame is often stamped with the same number as a backup.

Prefix	Identifies	Notes
G8S	VRG-40/2 Demolition & Sorting Grapple, standard production series	Appears as G8S1-UP in the factory parts book covering the VRG-20/2 through VRG-40/2 grapple family, listed alongside CZC1-UP (VRG-20/2's own confirmed prefix) as the serial ranges a shared hydraulic cylinder group fits. FEG1-UP in the same document set belongs to VRG-30/2, not VRG-40/2. No confirmed end-serial or model year is documented; confirm the exact cutoff and any later prefix with a dealer.

Frequently asked questions

What powers the Caterpillar VRG-40/2 if it has no engine?

It has no onboard engine, ECM, or power source of its own. It is a passive hydraulic work tool that runs entirely off the host excavator's hydraulic system: one circuit drives jaw open/close at roughly 320 to 350 bar, and a separate circuit drives continuous 360° rotation, both sized to the roughly 20 to 40 t carrier class it mounts to.

What is the operating weight of the VRG-40/2?

Roughly 1,680 to 2,120 kg (3,700 to 4,670 lb), depending on shell configuration (D demolition vs R recycling) and mounting bracket. Treat this as a class range rather than one fixed number, and confirm the exact figure for a specific unit against its nameplate or dealer records.

What replaced the VRG-40/2, or how does it relate to the G332?

The VRG-40/2 sits in Caterpillar's Verachtert-lineage grapple family. The closest current Cat catalog equivalent for this size class is the G332 Demolition & Sorting Grapple, which targets the same 30 to 40 t carrier class and the same jaw/rotation circuit concept. It is best treated as the modern parallel line rather than a direct one-for-one replacement model.

What VRG-40/2 owners discuss

Where does most of the reported wear show up on a VRG-40/2, since it has no engine or undercarriage of its own?

Owners and rebuild shops consistently point to three spots: the rotation ring/swivel bushings, the jaw pivot pins and bushings, and the cross-mounted cylinder rod seals. Because the tool has no powertrain, wear tracks almost entirely to how well the carrier's hydraulics were matched (flow and pressure) and how often the grease points were serviced. Dry or under-greased pivots show up as knocking or play well before the shells themselves wear out.

How common are hydraulic cylinder leaks on this class of rotating grapple, and what usually causes them?

Leaking rod seals are the single most reported hydraulic complaint on Verachtert-lineage grapples of this size. The usual cause is a pitted, scored, or lightly bent piston rod, not just a worn seal, so shops recommend inspecting the rod surface before assuming a reseal alone will fix it. A gland-nut wrench and a competent hydraulic shop are typically enough for the job; a seal kit installed over a damaged rod will leak again quickly. Because this sits in the tool's main jaw-clamp circuit, have your dealer verify rod condition and correct cylinder pressure before returning it to service.

Does the jaw tip/tooth wear on a set schedule, or is it condition-based?

Condition-based, not calendar- or hour-based on a fixed interval. Reports on similar demolition/sorting grapple tips vary widely by material worked: abrasive concrete and rebar can chew through tips in a few hundred hours, while sorting softer debris or scrap stretches life several times longer. Common practice is to build up worn tips with hardfacing rather than replace the whole jaw shell, which several operators say meaningfully extends service life between full tip replacements.

The rotation sometimes hesitates or sticks in certain positions — what do people check first?

The consensus troubleshooting order is: grease the swivel and pivot points first (daily or every 8-10 hours is the common recommendation for heavy use), then check for debris or corrosion inside the swivel joint, then look at hydraulic supply — a pressure drop from a marginal hose or fitting will show up as inconsistent rotation before it shows up as an obvious leak. If the tool has independent balance valves on the rotation circuit, swap them side to side; if the sticking follows the valve, that valve is the culprit rather than the bearing or motor.

What coupler or mounting issues come up with this size of grapple?

Since the VRG-40/2 hangs off the carrier through a hinge-plate/pin coupler rather than a fixed mount, the recurring complaint is play developing at the coupler interface over time as pins and plate bores wear — reported as a knock or shudder when the jaw closes under load. Tight-tolerance couplers and correct pin fit are described as the main defense; loose fit accelerates wear on both the coupler and the tool's mounting ears. Hose routing across the rotation joint is the other common wear point — hoses that aren't protected or that are routed too tight can chafe against the frame during continuous rotation.

Any quirks in how the rotation and jaw circuits interact that owners flag?

Because rotation and jaw open/close typically run as separate hydraulic functions on this class of tool, operators note that a fault in one circuit (for example, a weak rotation motor or a sticking valve) does not necessarily affect jaw clamping force, and vice versa. This independence is generally described as a reliability advantage, but it also means a rotation problem can go unnoticed for a while if the operator is mainly judging the tool by how well it grips. Confirm both circuits independently when diagnosing a complaint rather than assuming one function's health tells you about the other.

What should a buyer physically check on a used VRG-40/2 before purchase?

Consistent with used-attachment inspection practice generally: check jaw pin and bushing play by hand with the tool unloaded (excessive movement means pins/bushings are due); cycle the jaws and look for uneven closing or delayed synchronization between shells, which can point to a weak or leaking cylinder; run full rotation in both directions under light load and watch for hesitation, binding, or drift when centered; inspect the cylinder rods for pitting or active seepage at the gland; and check the coupler/hinge-plate interface for looseness or elongated pin bores. Confirm grease is present and fresh at all pivot points — dry joints are a sign of deferred maintenance even if the tool looks cosmetically sound. Because a worn rotation bearing or cracked hinge plate is a load-bearing safety issue, have your dealer verify structural and rotation-bearing condition before putting the tool into full production use.

Compiled from owner and technician discussions across the industry — experiences vary by serial range and machine history.

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